Image blur correction control apparatus, control method of the same, and imaging apparatus

Abstract

A control apparatus includes an object detection unit configured to detect an object and output information about the detected object, a calculation unit configured to calculate an object blur correction amount, an information detection unit configured to detect information in a background as background information and output the background information, a first setting unit configured to set a first direction, an adjustment unit configured to adjust the object blur correction amount so that an object blur correction amount in a second direction is more limited than that in the first direction, and a control unit configured to control blur correction so as to bring the position of the object closer to the target position based on the adjusted object blur correction amount, wherein the first direction is set based on the background information.

What is claimed is: 
     
         1 . A control apparatus comprising:
 an object detection unit configured to detect an object from an input image and output information about the detected object;   a first calculation unit configured to calculate an object blur correction amount based on a position of the detected object in the input image and a target position set in the input image;   an information detection unit configured to detect information included in a background from the input image as background information and output the background information;   a first setting unit configured to set a first direction in which object blur correction is performed from among a plurality of directions;   an adjustment unit configured to adjust the object blur correction amount so that an object blur correction amount in a second direction is more limited than an object blur correction amount in the first direction; and   a control unit configured to control blur correction so as to bring the position of the object closer to the target position based on the adjusted object blur correction amount,   wherein the first setting unit sets the first direction based on the background information.   
     
     
         2 . The control apparatus according to  claim 1 , wherein the background information includes at least one of a boundary included in the background, a contrast of the background, and a type of the background. 
     
     
         3 . The control apparatus according to  claim 1 , further comprising a second setting unit configured to set a direction in which the object blur correction is performed from among the plurality of directions,
 wherein the first setting unit sets the first direction based on the direction in which the object blur correction is performed set by the second setting unit and the background information.   
     
     
         4 . The control apparatus according to  claim 3 ,
 wherein the second setting unit sets the direction in which the object blur correction is performed based on a blur amount in each of the plurality of directions of an imaging apparatus that captures the input image, and   wherein the first setting unit sets the first direction based on the direction in which the object blur correction is performed set by the second setting unit and the background information.   
     
     
         5 . The control apparatus according to  claim 3 , wherein the second setting unit sets the direction in which the object blur correction is performed based on a user operation. 
     
     
         6 . The control apparatus according to  claim 3 , wherein, in a case where the direction in which the object blur correction is performed set by the second setting unit matches a direction of a boundary included in the background information, the direction set is set as the first direction. 
     
     
         7 . The control apparatus according to  claim 3 , wherein, in a case where the direction in which the object blur correction is performed set by the second setting unit does not match a direction of a boundary included in the background information, the direction set and the direction of the boundary are set as the first direction. 
     
     
         8 . The control apparatus according to  claim 1 , wherein, in a case where the first setting unit sets a plurality of directions as the first direction, the adjustment unit does not adjust the object blur correction amount different in each direction. 
     
     
         9 . The control apparatus according to  claim 2 , wherein the adjustment unit more limits the object blur correction amount as the contrast of the background included in the background information is higher. 
     
     
         10 . The control apparatus according to  claim 2 , wherein the adjustment unit more limits the object blur correction amount as a larger number of types of the background are included in the background information. 
     
     
         11 . The control apparatus according to  claim 1 , further comprising a second calculation unit configured to acquire an imaging apparatus shake amount that is a shake amount applied to an imaging apparatus that captures the input image and calculate an imaging apparatus shake correction amount based on the imaging apparatus shake amount,
 wherein the adjustment unit combines the object blur correction amount output from the first calculation unit and the imaging apparatus shake correction amount output from the second calculation unit to acquire a blur correction amount to be used by the control unit for controlling the blur correction, and adjusts the object blur correction amount by changing a ratio of the combining, and   wherein the control unit performs the blur correction based on the blur correction amount acquired by combining the object blur correction amount and the imaging apparatus shake correction amount.   
     
     
         12 . The control apparatus according to  claim 11 , wherein the adjustment unit sets a combination ratio to be used in the combining of the object blur correction amount in the second direction smaller than a combination ratio of the object blur correction amount in the first direction to more limit the object blur correction amount in the second direction than the object blur correction amount in the first direction. 
     
     
         13 . The control apparatus according to  claim 12 , wherein the adjustment unit increases the combination ratio of the imaging apparatus shake correction amount by an amount corresponding to reduction in the combination ratio of the object blur correction amount. 
     
     
         14 . The control apparatus according to  claim 1 , wherein the adjustment unit adjusts the object blur correction amount by making a frequency band included in the object blur correction amount in the second direction narrower than a frequency band included in the object blur correction amount in the first direction. 
     
     
         15 . The control apparatus according to  claim 1 , wherein the adjustment unit adjusts the object blur correction amount by making an upper limit value of the object blur correction amount in the second direction smaller than an upper limit value of the object blur correction amount in the first direction. 
     
     
         16 . The control apparatus according to  claim 1 , wherein the adjustment unit adjusts the object blur correction amount by making a gain by which the object blur correction amount in the second direction is multiplied smaller than a gain by which the object blur correction amount in the first direction is multiplied. 
     
     
         17 . The control apparatus according to  claim 1 , wherein, in a case where the object detection unit detects a plurality of objects, the first calculation unit calculates the object blur correction amount based on a position of a target object of object blur correction in the input image and the target position. 
     
     
         18 . An imaging apparatus comprising:
 an imaging unit;   an object detection unit configured to detect an object from an input image captured by the imaging unit and output information about the detected object;   a first calculation unit configured to calculate an object blur correction amount based on a position of the detected object in the input image and a target position set in the input image;   an information detection unit configured to detect information included in a background from the input image as background information and output the background information;   a first setting unit configured to set a first direction in which object blur correction is performed from among a plurality of directions;   an adjustment unit configured to adjust the object blur correction amount so that an object blur correction amount in a second direction different from the first direction is more limited than an object blur correction amount in the first direction; and   a control unit configured to control blur correction so as to bring the position of the object closer to the target position based on the adjusted object blur correction amount,   wherein the first setting unit sets the first direction based on the background information.   
     
     
         19 . A method for controlling a control apparatus, the method comprising:
 detecting an object from an input image and outputting information about the detected object;   calculating an object blur correction amount based on a position of the detected object in the input image and a target position set in the input image;   detecting information included in a background from the input image as background information and outputting the background information;   setting a first direction in which object blur correction is performed from among a plurality of directions;   adjusting the object blur correction amount so that an object blur correction amount in a second direction is more limited than an object blur correction amount in the first direction; and   controlling blur correction so as to bring the position of the object closer to the target position based on the adjusted object blur correction amount,   wherein the first direction is set based on the background information in the setting.